Attractions:
Beaches-
San Juan is the best tourist strip in Puerto Rico and has one of the finest beaches, Condado, Ocean Park and Isla Verde.
Lunch or a cool drink is available at the beachfront restaurants, guest houses and hotels that are found throughout the three areas. Vendors, selling cold drinks and snacks, walk up and down the beach or work from nearby stands.
Water Sports-
Kayaks, jet skies, windsurfing boards and all types of boats can be rented in San Juan. Water sports instruction is also available through a wide variety of businesses.The Condado Lagoon is a popular place for kayaking, and rentals are available there. Windsurfing classes are offered in Isla Verde. The large San Juan Bay Marina, outside of Condado, offers fishing trips and boat rentals.
Scuba instruction is available at several large hotels and independent businesses throughout the Island. Several hotel courses are open to non-guests as well. To get a taste of the sport.
El Morro:
El Morro,
Calle Norzagaray,
Old San Juan-
Its real name is Fuerte San Felipe del Morro, but locals just call this massive fortress El Morro. The name means 'the promontory,' and refers to its location on a rocky peninsula extending into the Atlantic. The breathtaking setting makes it the city's most popular attraction, so things can get crowded when cruise-ship passengers pack into its towers, tunnels, and turrets. (Getting here early in the day is a good idea—as well as escaping the crowds, you'll avoid the worst of the heat.) Every bit as interesting is the city's other fort, Fuerte San Cristóbal. The only thing it doesn't have is the crowds. Consider visiting this one, located on the eastern end of Calle Norzagaray.
El Yunque Rain Forest:
El Yunque,
Río Grande-
This 28,000-acre rain forest, about 25 miles east of San Juan, has dozens of well-marked trails (graded for difficulty) that lead to waterfalls, observation towers, and swimming holes. Most hotels arrange guided tours, but the park is easy to explore on your own, as there's only one major road. For a decent map or to talk with rangers about which trails you might try, stop at El Portal, the information center at the park's entrance. You can also catch a documentary here on the cotorras, the endangered indigenous green parrots that are slowly making a comeback.